/Engine/Plugins/Experimental/Water/Source/Runtime/Public/WaterBodyIslandActor.h
Returns the landscape weightmap settings, per layer, for this water actor
virtual const [TMap](API\Runtime\Core\Containers\TMap)< [FName](API\Runtime\Core\UObject\FName), [FWaterBodyWeightmapSettings](API\Plugins\Water\FWaterBodyWeightmapSettings) > & GetLayerWeightmapSettings() const